Food Frequency Questionnaire for Female Adolescents in North China
Author Information
Author(s): Xia Wei, Sun Caihong, Zhang Li, Zhang Xin, Wang Jiajia, Wang Hui, Wu Lijie
Primary Institution: Harbin Medical University
Hypothesis
This study aims to evaluate the reproducibility and validity of a food frequency questionnaire (FFQ) developed for female adolescents in the Suihua area of North China.
Conclusion
The FFQ developed for female adolescents in the Suihua area is a reliable and valid instrument for ranking individuals within this study.
Supporting Evidence
- The FFQ was evaluated against the average of 24-hour dietary recalls.
- ICCs for all nutrients and food groups in FFQ1 and FFQ2 were moderately correlated (0.4–0.8).
- The crude Spearman's correlation coefficients of FFQ1 and the 24-HRs ranged from 0.41 (for Vitamin C) to 0.65 (for fruit).
- De-attenuation to correct for intra-individual variability improved the correlation coefficients.
Takeaway
The researchers created a questionnaire to help understand what teenage girls in North China eat, and found it works well for tracking their diets.
Methodology
The study involved 168 female adolescents aged 12 to 18 who completed nine three consecutive 24-hour dietary recalls and two FFQs over nine months.
Potential Biases
Potential recall bias may affect the accuracy of dietary reporting.
Limitations
The study did not include beverages in the food groups, which may influence energy intake, and had a small sample size.
Participant Demographics
Female adolescents aged 12 to 18 from three middle schools in Suihua, Heilongjiang Province, China.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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